The answer to engineering change and event management within a supplier network is collaborative ramp-up management, because it achieves transparency and defined structures in the ramp-up planning and steering processes. The usage of the ramp-up demonstrator, developed by the IML, simplifies the serial start-up within a supplier network. The ramp-up demonstrator is a combination of order-to-delivery simulation and current workflow management concepts, by which a controllable and plannable ramp-up environment is achieved.